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omapfb: add missing of_node_put after of_device_is_available

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Add an of_node_put when a tested device node is not available.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
identifier f;
local idexpression e;
expression x;
@@

e = f(...);
... when != of_node_put(e)
    when != x = e
    when != e = x
    when any
if (<+...of_device_is_available(e)...+>) {
  ... when != of_node_put(e)
(
  return e;
|
+ of_node_put(e);
  return ...;
)
}
// </smpl>

Fixes: f76ee892a9 ("omapfb: copy omapdss & displays for omapfb")
Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
This commit is contained in:
Julia Lawall 2019-04-01 17:46:56 +02:00 • committed by Bartlomiej Zolnierkiewicz
commit 787a79230a
1 changed files with 3 additions and 1 deletions
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4
drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c
View file

@ -193,8 +193,10 @@ static int __init omapdss_boot_init(void)
dss = of_find_matching_node(NULL, omapdss_of_match);
if (dss == NULL || !of_device_is_available(dss))
if (dss == NULL || !of_device_is_available(dss)) {
of_node_put(dss);
return 0;
}
omapdss_walk_device(dss, true);